56247405 has 32 divisors (see below), whose sum is σ = 91888128. Its totient is φ = 29376000.

The previous prime is 56247403. The next prime is 56247413. The reversal of 56247405 is 50474265.

56247405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56247405 - 2¹ = 56247403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56247403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207420 + ... + 207690.

It is an arithmetic number, because the mean of its divisors is an integer number (2871504).

Almost surely, 2^56247405 is an apocalyptic number.

It is an amenable number.

56247405 is a deficient number, since it is larger than the sum of its proper divisors (35640723).

56247405 is a wasteful number, since it uses less digits than its factorization.

56247405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 56247405 is about 7499.8269980047. The cubic root of 56247405 is about 383.1488240381.

The spelling of 56247405 in words is "fifty-six million, two hundred forty-seven thousand, four hundred five".